Exhaust ventilator



May 26, 1931. F. LQWAGAR 1,807,109 EXHAUST vEunpA'ron Filed Dec. 28, 1928 I N V EN TOR. M597 BY adww ATTORNEY Patented May 26, 1931 1" I UNITED STATES ATET OFFICE' FRED L. WAGAR, OF WAGAR, ALABAMA EXHAUST VENTILATOR Application filed December 28, 1928. Serial No. 329,069.

The object of my invention is the promaybe threaded at points 10, 11, 12, 13 to vision of means for drawing air, smoke and receive threaded nuts 14: which clamp the the gases attending combustion from a rod to the crossbar-s 15, 16, 17 and the chimney, and also air from various strucplate 8. r

tures where ventilation is desirable, the Between plates 4 and 8 is pivoted the armain motive force for creating an upward row-headed wind vane air deflector. The draft being the energy of wind in motion arrow head is formed of metal and the sides impinging upon obliquely disposed deflect- 18, 19 are obliquely disposed to each other. ing surfaces. Cross plates 20, 20 and obliquely disposed in The invention consists in certain novelties plates 21, 22 preferably close the space be of construction and in the combinations of tween the plates 18, 19. The shaft 23 of parts as herein set forth and claimed. the wind vane is secured at oneend to the The accompanying drawings illustrate an arrow head and the opposite end 24; widened example of the embodiment of the invention, to provide a relatively large area for the 15 the parts being constructed and combined Wind impinging upon it. according to the best mode of procedure I he S aft 23 s a he ing 25 With a have so far devlsed for the purpose. wearmg thimble 26, said thimble engaging Figure 1 is a part plan and part sectional the bearing 27 fixed upon the central rod. view taken in a horizontal plane 1-1 of Ball bearings for the shaft of the vane may 30 Fi 2, be used if desired.

Figure 2 is a part sectional and part ele- Obviously, a current of air in motion, as vation view of the whole device taken in apwind, will be deflected downwardly by the proximately a vertical plane through the frus-to-conical deflector, upwardly by the center of Figure 1. conical deflector, and outwardly in a hori- Figure 3 is a top plan view of the rotary Zontal plane by the arrow-headed vane, and arrow-headed wind vane for deflecting air away from the chimney opening, thus orefrom the opening to the chimney. ating a vacuum space at the chimney open- The device deflects moving air, as wind, ing so that air, smoke and the gases attendupwardly at A, downwardly at B and outing combustion will flow out of the chimney. wardly in opposite directions horizontally As the arrow-headed vane can rotate relaat C, C; that is, away from the chimney tively to the fixed rod, the point of the aropening. row head will always point to the air in The numeral 1, in this example, designates motion. The device is adapted for use not the chimney; 2, the trustum of a cone havonly in connection with a chimney but in ing a circular flange 3 adapted to be secured connection with a pipe or flue for exhaustto the top of the chimney in any suitable ing or drawing air from a room or other way; 4, the top horizontal plate with an structure. 7

opening 5 corresponding to the diameter of lVhile I have illustrated and described the chimney opening; 6, a central vertical only one example of the embodiment of the pipe secured to the deflector and extendingv invention, it may be embodied with numerdownwardly into the chimney opening, ous changes in the details of construction, where it is secured in position in any suitand the dimensions adapted to the pipe or able way; and 7 is a conical air deflector chimney in connection with which the despaced parallel with and from the top survice is to be used.

face of the frusto-oonical deflector and the What I claim is: opening covered by a horizontal plate 8, as 1. The combination in an air exhausting shown. device, of a fixed frusto-conical air deflector A vertical rod 9 is disposed axially of the having a horizontally disposed cover plate 4 chimney opening, the frusto-conical dewith a central opening, a fixed conical air fiector and the conical deflector. The rod deflector with a horizontal plate 8, a'rotary m arrow headed vane air deflector located between the two said plates 4 and 8, said arrow headed vane air deflector comprising an arrow head with its sides 18, 19 obliquely disposed to each other invertical planes and a shaft extended horizontally beyond the plates 4 and 8, and fixed means with a bearing for the rotary arrow headed vane air deflector.

2. The subject-matter of claim 1 wherein the means constituting a bearing for the rotary vane air deflector consists of a fixed rod 9 which also supports the conical ail 3. The combinationin an air exhausting device, of a fixed frusto-conical air deflector having a horizontal plate 4 with a central opening, a crossbar at the opening, a fixed conical air deflector with a plate 8, a rod 9 secured to plate 8- and the said crossbar, and an arrow headed Vane air deflector located between the two said plates 4 and 8 and mounted to rotate on the said rod. 7

1. The combination inan air exhaust device, of a rod, a bearing on the rod, means for fixedly sup porting the rod at the opening of 'a chimney or out-let means for the products of combustion, a suitably supported horizontally disposed plate with a central opening surrounding the rod, a conical air deflector secured to the top end of the rod, and a rotary arrow headed vane air deflector comprising at one end an arrow. head with sides vertically disposed and a shaft rotat ably mounted on the bearing carried by the rod, said arrow head being located between the plate with the central opening and the conical air deflector, and the said shaft extending outwardly beyond the conical air deflector. V

In testimony whereof I aflix'my signature.

FRED L. WAGAR. 

